Three collinear points are reflected in y = 4. What remains true?
AThey become one point
BThey form a right angle
CThey all lie on y = 4
DThey remain collinear
Answer & Solution
Correct answer: D. They remain collinear
A reflection preserves distances and straightness, so a collinear triple stays collinear.
Keep practising Coordinate Geometry
Browse all Coordinate Geometry questions for ICSE Class 10, or explore more Mathematics topics.
Related questions
Find the line through (0,−3) with inclination 45°.In triangle A=(0,4),B=(0,0),C=(4,2), which line is the altitude from A?In triangle A=(0,4),B=(−2,0),C=(4,0), the median from A lies onA=(0,0), B=(6,3). P is internal and lies on x+y=6. Find AP:PB.A line through (0,2) and (3,5) also contains (k,0). Find k.Where do y=2x+1 and y=−x+7 intersect?What describes 2x−3y=6 and 4x−6y=12?For the horizontal y=3, a perpendicular through (−2,5) has equation